body {
    margin: 0;
    padding: 0;
    background-color: transparent;
}

#welcome {
    position: absolute;
    left: 50px;
    top: 50px;
    width: 500px;
    height: 50px;
    background-color: #AFAFAF;
    color: #99FFFF;
    font-size: 30px;
    text-align: center;
}